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How I can communication with 2 uC

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any one have idea, how i communication 2 microcontroller (mcs 51) in port (not UART, SPI) :( i try it but it can't work data transfer in parallel 8 bit data and 2 hand checking but it have error
:cry:
 

silvio

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techie

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parallel transfer is only must when the data speed has to be very fast (approaching the MCU execution rate). In all othere circumstances, a serial or I2C is preferred.

Serial ATA has the advantage of simpler cable and connections. With the high speeds of serial transfers possible using new silicon advancements, a USB like simple cable and connector is preferrable than a 40 pin IDE.
 

senthilkumar

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hai,
which way r u trying .can u give sample sch and pgm
bye
 

J_expoler1

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u can use interrupt to check data transfer :eek:
 

JoseArgentino

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Microcontrollers connect

Hi, you can use some types of 3 states. Yo can use for example 74ls245 or similar part nad use 2 adittional pins to enable the chips. Regards.
 

Analyzer

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Well which mcu's are you using? If pic's try to look at www.pic-c.com/forum If i were you i prefer i2c.

Analyzer.
 

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